Water sprinkler



y 2, 1933- J. J. MCTERNAN 1,906,991 I WATER SPRINKLER Filed March 24, 1931 INVENTOR: JOSEPH J. MCTERNAN.

ATTORNEY.

' flexible hose 11.

Patented May 2, 1933 UNITED STATES JOSEPH J. HCTEENAN, OF SAN FRANCISCO, CALIFORNIA WATER BI 1 application filed March 24, 1981.

This invention relates to improvements in water skrinklers and more particularly to water v sprinklers for irrigating gardens and lawns.

The principal object of the invention is to distribute water evenly over a wide area of ground.

Another object is to produce a finely divided spray simulating rain, thus insuring against washing out small plants and grass.

A further object is to simplify the construction of sprinklers, thereby effecting a material reduction in the manufacturing cost.

Other objects and advantages of the invention appear as the description progresses.

In this specification and the accompanying drawing the invention is disclosed in its preferred form. It is to be understood, however, that it is not limited to this form because it may be embodied in other forms within the spirit of the claim following the description.

In the one sheet of drawing:

Fig. 1 is a side elevation of a water sprinkler constructed in accordance with this invention.

Fig. 2 is a vertical section view of the sprinkler head detached from the stand.

In detail, the construction illustrated in the drawing comprises the sprinkler head having the tapered sheet metal body 1, the lower end of which is diametrically reduced at 2 to form the cylindrical neck 3. The end of the neck 3 is flanged inwardly at 4.

The tubular stem 5 extends vertically through the hollow body 1. The annular boss 6 is guided in the neck 3 and maintains the stem 5 in position in the center of the body 1.

The lower end of the stem is externally threaded at 7 to engage the hollow bushing 8. When the coupling is screwed onto the stem, it impinges on the lower end of the neck 3, seating the boss 6 tightly on the flange 4:. Thus the stem 5 is rigidly held against movement with respect to the body 1.

The coupling 8 is externally threaded at 9 to engage the coupling 10 on the end of the The hose is connected to the usual valve in the water service line.

The annular externally threaded coupling Serial No. 524,830.

12 has the annular shoulder 13 clinched in the upper end of the body 1. The hemispherical top 14 has the perforations 15-15 of preferably small diameter and spaced substantially equidistant from each other. The lower edge of the top 14 is clinched around the internally threaded ring 16. The to 1t is attached to the body 1 by screwing t e ring 16 onto the coupling 12. The threads of the couplings 812 should be sufiiciently accu- W rate to insure a water-tight fit.

The upper end of the tubing 5 is chamfered at 17 to receive the truncated end of the conical baffle plate 18. The outer end of the heme rests on the coupling 12 to form an enclosed water chamber A beneath the hollow top 14. The bafie is firmly seated against the coupling 12 by the water pressure in the chamber A when the device is in operation.

' The sprinkler head may be readily taken apart for cleaning and repairs by unscrewing the top It and the coupling 8. The stem 5 and the bafile 18 may then be lifted vertically and removed from the body 1.

In use, the sprinkler head is mounted in the tripod stand shown in Fi re 1. The stand consists of the hollow tapered bracket 19 supported by the legs 20, 21, 22 welded thereto. The legs flare outwardly from each other below the bracket 19 and are joined near $6 their lower ends by the ring 23. If desired, the lower ends of the legs 20, 21, 22 may be sharpened to penetrate the ground to hold the stand firmly in place.

The sprinkler head is placed in the bracket 19, the body 1 resting against the tapered sides of the bracket. The coupling 10 of the hose is then screwed onto the coupling 8 on the lower end of the sprinkler head.

The device operates substantially as follows: The water flows from the hose 11, through the tubular stem 5, to the chamber A. From thence, the water issues in a fine jet from each of the orifices 15-15. The several water jets project to a considerable distance, irrigating uniformly over a wide area. The jets are broken up into fine drops of water by atmospheric resistance, thus insuring against eroding the soil.

The small size of the orifices 15 creates a head pressure in the chamber A. The water is thus distributed equally through each of the y orifices irrespective of their position on the i top 14. The conical baflle 18 serves to direct upwardly the water issuing through the lower series of orifices 15. 4

Having thus described this invention, what I claim and desire to secure by Letters Patent A water sprinkler having a hollow body of relatively thin material having an externally threaded coupling with an annular shoulder clinched in the upper end of the body; a semispherical perforated top of relatively thin material having an internally threaded ring clinched in its lower end and cngageable with said coupling; an integral cylindrical portion extending downward from said body and having an inwardly extending flange at its lower end; a vertical tubular stem in said body, threaded at its lower end and chainfered at its upper end; a truncated conical baflle centering on the chamfered end of said stem and resting on said coupling; a boss on said stem centering in the cylindrical port-ion of said body and engaging the flange on the lower end thereof: and a coupling threaded on the endJof said stem and engaging beneath said flange to draw said boss tightly thereagainst.

In testimony whereof I have hereunto set my hand this 19th day of March, 1931.

JOSEPH J. MOTERNAN. 

